Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water. 3 NO2(g) + H2O(ℓ) −→2 HNO3(ℓ) + NO(g) If 840 L of NO2 gas react with water, what volume of NO gas will be produced? Assume the gases are measured under the same conditions.

The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine 1580 L of nitrogen gas and 4240 L of hydrogen gas at STP, heat the mixture to run the reaction, then separate the ammonia from the reaction mixture. What volume of reactant, measured at STP, is left over? Assume the reaction goes to completion. N₂ (g) + 3 H₂ (g) → 2 NH₃ (g)

Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right). This makes it easy to isolate and measure the amount of gas produced. 2 Suppose the CO₂ gas evolved by a certain chemical reaction taking place at 40.0 °C is collected over water, using an apparatus something like that in the sketch, and the final volume of gas in the collection tube is measured to be 51.0 mL. g x10 X 歐 Sketch of a gas-collection apparatus S collected gas Calculate the mass of CO₂ that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about 2 the reaction conditions and the nature of the gases. water chemical reaction

The best laboratory vacuum pump can generate a vacuum of about ∆H f olecular chlorine and molecular fluorine combine to form a gaseous product. Under the same conditions of temperature and pressure it is found that one volume of Cl2 reacts with three volumes of F2 to yield two volumes of the product. What is the formula of the product? (b) Methane, the principal component of natural gas, is used for heating and cooking. The combustion process is

Small amounts of oxygen can be generated by the thermal decomposition of KClO 3; 2 KClO 3(s) ↔ 2 KCl(s) + 3 O 2(g) A sample of KClO 3 was decomposed and oxygen collected over water at 26.00 °C (Vapor pressure = 25.21 torr). How many grams of KClO 3 decomposed if 1.032 L of gas were collected at 693.6 torr?

How many grams of NaClO3 were decomposed?

A 5.65 L vessel contains 22.0 g of PC13 and 3.35 g of O2 at 15.0 °C. The vessel is heated to 215 °C, and the contents react to give POC13. What is the final pressure in the vessel, assuming that the reaction goes to completion and that all reactants and products are in the gas phase? -- ΑΣΦ P= 1.441 ? atm

Hand written solutions are strictly prohibited.

The chlorination of methane occurs in a number of steps that results in the formation of chloromethane and hydrogen chloride. The overall reaction is 2CH, (g) +3 Cl, () 2CH,CI(g) + 2 HCI(g) + 2CI (g) Suppose that a chemist combines 273 mL of methane and 689 mL of chlorine at STP in a 2.00 L flask. The flask is then allowed to stand at 298 K. If the reaction reaches 75.0% completion, what is the total pressure in the flask? Pictal = atm What is the partial pressure of CH,? Pon, = atm What is the partial pressure of Cl, ?

A convenient laboratory source for high purity oxygen is the decomposition of potassium permanganate at 230°C: 2 KMNO4(s) → K2MnO4(s) + MnO2(s) + O2(g) Suppose 3.41 L oxygen is needed at atmospheric pressure and a temperature of 20°C. What volume of oxygen should be collected at 230°C and the same pressure to give this volume when cooled?